Thunderbird Community Forum

I've spent many hours on this and please note I do not send many emails with attachments, maybe 1 every few months so I don't know how long this has been happening for as I also have noticed in the last year or more that sending just via Yahoo is getting slower in connecting to the server before sending.

W11 see Troubleshooting info as well.

Yahoo accounts 3, all will receive text and messages with attachments. All good. Yahoo accounts 3, all will send text only messages. No attachments. All good. Yahoo accounts 3 all will not send messages with attachemnts or inserted images. NOT good.

It only happens with Yahoo and not others such as Outlook or Google and only affects sending with an attachment.

I have tried troubleshooting tab and changing port number and a host of other things all failing. I have uninstalled Thunderbird and and deleted all %appdata% Thunderbird folders. I reinstalled Thunderbird and created just one Yahoo account with known credentials, no importing nothing. Just an empty account, and it automatically dowloaded confirmation, so account works. I tried sending a message with an attachment and it just kept trying to send for over 5 minutes. I cancelled it. I removed the attachment and clicked send, it sent within 30 seconds. I then did the same with an Outlook account and message with attachment sent within 5 seconds.

Error messages: When creating Yahoo account on completion I get a whole bunch of certificate warnings, about 5. I click accept. I also get the 'sending of message failed' 'This message could not be sent because the connection to Outgoing server (SMTP) timed out. Try again. Always fails unless I remove the attachment. I can also get no message as above after 5 minutes of waiting.

I'm at a loss, all others work except Yahoo.

I installed Thunderbird and typed in my Office 365 email information to connect my account. Thunderbird found the correct IMAP settings, which I verified on Microsoft's website. It proceeds to open a browser so I can authenticate my account. After that succeeds it starts downloading all of my messages & folders. I thought everything went fine until I attempted to send a message. I get the following error:

Login to server smtp.office365.com with username me@mydomain.com has failed.

It gives me the option to enter a new password, which doesn't make sense since it's oAuth2 but I created an app password to see if that would work, and it didn't. The only other options are cancel & retry which don't help either.

I thought maybe something went wrong with the authentication process so I uninstalled thunderbird and started again with the same results. I've tried many other server settings, but nothing works, so I'm here.

Current Settings:

Server Name: smtp.office365.com User Name: me@mydomain.com Authentication Method: oAuth2 Security: STARTTLS Port: 587

I've tried: Using Port 465 / SSL/TLS Using Port 465 / STARTLS Using Port 587 / SSL/TLS Changing Auth method to Normal Password and then using app-specific password. Uninstall / Resintsall

One final thing to note: I followed the same process with my fastmail.com account, which worked flawlessly. I can send & receive fine.

I have TB 115.15.0 on an old PC (W10) I want to move TB to a new PC (W11)

If I go to Help> Troubleshooting Information And click on show folder it gives location of my profile as: C:\Users\Rick\AppData\Roaming\Thunderbird\Profiles\4p8y3fgt.Rick Now that does contain ‘a mail folder’ of 48MB but it is not all of my filed mail. (local folders There is a filed mail folder for (local folders) at: E:\My email\Local Folders ( this is where my overall filed mails are) E:\My email\pop3.btconnect.com (this is an older account, no longer used)

I would like to get them both onto the C:\ active profile On new PC application & data will both be in C:\

What is best approach to homogenise the data so all on C:\ location data to new W11 PC ….. assuming I should first move stored mail to C:\ get it all working OK;

I'll do that Anybody advise on steps ? TB installed on C:\ On E: there are 2 folders E:\My email\Local Folders ( this is where my overall filed mails are) E:\My email\pop3.btconnect.com (this is an older account, no longer used)

I would like to get them onto the C:\ active profile Then I can move the lot to a new PC

All was fine with gmail with 128.2.2 for me until this morning. I updated to 128.2.3 and login to gmail imap fails. Backed off to 128.2.2, everything works. Something is wrong with 128.2.3.

I run Thunderbird on a PC, and, to free up space on Drive C:, I have moved the contents of the folder Thunderbird in Appdata to Drive D:. I then changed my Server Settings, in Thunderbird, from C: to D:, and note that any new mail is indeed now appearing there along with those already transferred. This move could save me a valuable 6 gig of space, and more in the future, however, I am unable to remove that original Thunderbird folder entirely, notably I am unable to remove the contents of the Profiles folder, as it is still linked to the application. Notably with cookies.sqlite, cookies.sqlite-shm, store.json, mozlz4, aborted-session-ping and many others, which I note some have continued to be updated. I have been unable to find any other settings in Thunderbird referring to Drive C:, other than those in Server Settings.

I could presume that if I installed another version of Thunderbird on Drive D: and maybe moved those existing contents of the Thunderbird folder on C: onto Drive D:, and made those numerous settings changes to the App it could work. But I ask is there an easier way to complete this move? How can I complete this transition of Thunderbird from Drive C: to Drive D:?

Starting in the last month or so, when I login to my email account using Thunderbird I get a Filesystem notification initialization error asking me to check for configuration errors in the FAM/Gamin library. (Side note the error only stays as long as my mouse is hovering over it then it vanishes so I can't get a screenshot or copy and paste the text.) I am still able to send messages, receive new messages, and access saved messages in my local folders, so I am not sure what this error means.

I just got off the phone with my email service provider who confirmed that they are not seeing any issues on the server end, so It appears to be something on the Thunderbird client side. I tried clearing the startup cache and that did not resolve the issue.

Using version 115.15.0 (64-bit) on PureOS which is a variant of Debian. PureOS is designed for extra security so there is a delay between the release of new versions and the time that purism.com releases the update to PureOS. It may be I just have to wait for Purism to release version 128...

Thanks for any suggestions.

I recently upgraded to Ubuntu 24.04. I also migrated from using Thunderbird via snap to installing and running it via Flatpak.

As a result, the Thunderbird icon on the dock now shows the normal logo with an annoying green circle with the number "1" in white text on top. I have uploaded the image.

This suggests there is one new message but that is not the case - whether there are 0 new messages or 10 new messages, the icon in the dash does not change.

How can I return to the original Thunderbird icon?

I have checked the org.mozilla.Thunderbird.desktop file which is located in /usr/share/applications and and it says:

Icon=thunderbird StartupWMClass=thunderbird-esr

However, I have no idea where the thunderbird icon is located and how to replace it with my own .png file. I cannot find the current icon file anywhere.

Does anyone know how to replace the current icon with my own icon or with the original Thunderbird icon?

I find that I have forgotten most of what I have learned about Thunderbird. Recently I needed to "refresh" the folder list from one of my email accounts for I had created a subfolder under a parent folder while using the browser to access the email account online. I remembered that I was able to "refresh" the folder list very easily for this happened in the past. I was able to find the resolution in Thunderbird's FAQ/Help, but that took some time.

You probably noticed that I quoted the word "refresh", that isn't the correct search criteria for it is actually a synchronization issue. Before you search how to Synchronize folders:

    1) Right click the email account
    2) Select "Subscribe" from the pull down list.
    3) A list will popup of all of the folders for that account
    4) Highlight any folder that doesn't have a checkmark in the box to the right of each folder and place a checkmark in the box by selecting the box.
    5) Select "Refresh" from the right panel, then select "OK"

Although I could use a PC based journal, I would like to have such a journal/note section within Thunderbird so that I can keep How-to notes.

PDF attachments to emails are sometimes corrupt. They are not displayed when the email is opened (only a blue line is shown); after they are saved they cannot be opened (Adobe and also EDGE give a message that the file is damaged). The same attachments can be opened and saved correctly using the free Outlook application from Windows. I noticed the problem this month. The installed version of Thunderbird is Thunderbird 128.2.2 esr - but the problem also existed with version 128.2.1.

Several impressions of my thunderbird inboxes appear on screen after the sleep function has been activated when the pc is left on. When I put the impression away I sometimes lose all the emails inwards.bold text

Thunderbird is getting in a tight loop when I try to print any email.

The hangup is occurring when I execute the print command. The basic dialog appears with the "Preparing Preview" message. The right side of the window appears with only "Print" and the separator line below it.

I must terminate the loop by running the System Monitor and kill the program. If I just close the dialog window, Thunderbird continues to run.

I don't know how to fix the problem. Any thoughts?

This is on openSUSE Tumbleweed. Details follow:

KDE Plasma Version 6.1.5

KDE Frameworks version 6.6.0 Qt Version 6.7.2 Kernel Version 6.10.9-1-default (64-bit) Graphics platform: Wayland

I have had the same problem with older versions of the system for at least a month.

My system is a white box with 16x AMD Ryzen 7 2700X Eight core processor and 16 gb of ram. I have an NVIDIA GeForce GTX 1050 TI/PCIe/SSE2

Thunderbird 128.2.2esr (64-bit) stopped sending emails. It receives OK. This happens in web.com who is my isp. The error message says "Sending of the message failed. An error occurred while sending mail. The mail server responded: Domain Spoofing Prohibited. Please verify that your email address is correct in your account settings and try again." Do you have any idea what the problem is?

Hi,

When I create an event in Thunderbird Agenda, I add a description and I send the event to attendees. These attendees receive the invitation to the event, but the description is not showing.

What can I do?

Thanks!

I see that part of whats new in this release FIXED = fixed

Some users were unable to log in to Microsoft 365

-However NOW with this version I cannot login.

Please advise

The configuration settings have not changed re: Authorization. Anyone else with this issue? TIA

I've been using Thunderbird for several years now without any issues, and I currently have the latest version installed. I typically have multiple email accounts logged in. Recently, I tried adding a Gmail account, but it wouldn’t log in, showing the error: "Unable to log in at server. Probably wrong configuration, username, or password."

I’ve tried the usual fixes like closing and reopening Thunderbird, clearing cache files, and even searching online for solutions. Based on what I found, I’ve tried turning off VPN/antivirus, changing the default browser, clearing browser data, and, finally, uninstalling and reinstalling Thunderbird after removing all my email accounts.

Now, I’m unable to log in to any of my accounts, which were working fine before. Can anyone guide me on how to resolve this issue?

Thanks in advance!

Hi Folks,

As I said above, I just updated to Thunderbird version 128.2.1esr (64-bit) and seem to have lost a couple of functions, in particular the ability to make a new Tab, and the use of an extremely handy Add-on, Shrunked Image Resizer. I have Mac OS 12.7.6 and I noticed in the release notes for 128.2.1esr (64-bit) that this latest version's System Requirements are MacOS 10.15 or later. Does that mean that I should not have downloaded the latest version, and if so, how can I revert to an earlier version of TB that will allow me to use Tabs and Shrunked Image Resizer? I thought that Thunderbird was capable of recognizing which version of Mac OS I have and thus would not suggest I update to the latest version of TB if it won't work as it did with an earlier version of TB. I would be very grateful if you could suggest a solution to my problem.

Thanks, Chris O'Brien

Hi,

I use the latest Thunderbird email client 128.2.2esr (64-bit). Microsoft announced that to make it work with outlook all users have to make changes in settings for more security. I did all that they wrote and can receive emails on my .......@outlook.com email address, but I can't send emails due to absence of authentication setting for outgoing server. I attached screenshots FYI. Is it possible to fix this issue? It's required to add authentication setting for outgoing server.

Regards, Leonid.